Electrolyte mix to water ratio

My question is in regard to electrolyte:water ratios. I’ll start by saying, I’m aware that the temperature/humidity is a huge factor here and that will always be top of mind. I race purely xc marathon (4 hour) locally with a couple of 50 mile backcountry races as my A&B races. After some trial and error I have decided that my best bet is to have two bottles on me at all times (not a fan of a water pack) preferably switching both bottles out simultaneously as needed. One bottle has my electrolyte/carb mix and the other just water. Skratch labs calls for 1.5 scoops per bottle, but since I prefer to have one bottle of just water, should I be mixing my electrolyte bottle with 3 scoops? On first thought it seems obvious that I should be doubling up my electrolytes, but something tells me it might not be necessary. I would like to hear any experience/recommendations anyone might have. Thanks.

Im not sure one bottle of water and one bottle of double concentrate would be quite as effective as two bottles of correct concentration.

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yes 2-3x in 1 bottle is pretty normal in 1 bottle especially if you are going to be only getting water on a course.

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